Refactor ResourceHandler API.

content/browser/download/download_resource_handler.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_BROWSER_DOWNLOAD_DOWNLOAD_RESOURCE_HANDLER_H_
 #define CONTENT_BROWSER_DOWNLOAD_DOWNLOAD_RESOURCE_HANDLER_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 31 matching lines @@
   // static
   // This function is passed into ResourceDispatcherHostImpl during its
   // creation and is used to create instances of DownloadResourceHandler as
   // needed.
   // TODO(ananta)
   // Find a better way to achieve this. Ideally we want to move the logic of
   // creating DownloadResourceHandler instances out of
   // ResourceDispatcherHostImpl.
   static std::unique_ptr<ResourceHandler> Create(net::URLRequest* request);
 
-  bool OnRequestRedirected(const net::RedirectInfo& redirect_info,
+  void OnRequestRedirected(const net::RedirectInfo& redirect_info,
                            ResourceResponse* response,
-                           bool* defer) override;
+                           bool* defer_or_cancel) override;
 
   // Send the download creation information to the download thread.
-  bool OnResponseStarted(ResourceResponse* response, bool* defer) override;
+  void OnResponseStarted(ResourceResponse* response,
+                         bool* defer_or_cancel) override;
 
   // Pass-through implementation.
-  bool OnWillStart(const GURL& url, bool* defer) override;
+  void OnWillStart(const GURL& url, bool* defer_or_cancel) override;
 
   // Create a new buffer, which will be handed to the download thread for file
   // writing and deletion.
   bool OnWillRead(scoped_refptr<net::IOBuffer>* buf,
                   int* buf_size,
                   int min_size) override;
 
-  bool OnReadCompleted(int bytes_read, bool* defer) override;
+  void OnReadCompleted(int bytes_read, bool* defer_or_cancel) override;
 
   void OnResponseCompleted(const net::URLRequestStatus& status,
                            bool* defer) override;
 
   // N/A to this flavor of DownloadHandler.
   void OnDataDownloaded(int bytes_downloaded) override;
 
   void PauseRequest();
   void ResumeRequest();
 
@@ skipping 20 matching lines @@
   // deletion must occur on the IO thread.
   std::unique_ptr<DownloadTabInfo> tab_info_;
 
   DownloadRequestCore core_;
   DISALLOW_COPY_AND_ASSIGN(DownloadResourceHandler);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_DOWNLOAD_DOWNLOAD_RESOURCE_HANDLER_H_